When detransforming in a alley after an tough akuma attack, Marinette, exhausted, doesn't see the tall figure wrapped in a black coat standing at the other end of the alley.
The same night, coming home from a girl's night at Alya's, she find her parents in the bakery, tortured and left for dead.
Just before dying in her arms, his father tells her their aggressor knows she is Ladybug and wants to kill her by all means.
oOo
Meanwhile, Adrien goes to his father's office to ask him for the hundredth time about his birthday party next week and finds out he is a drug and weapon lord.
He goes to the police.
His father gets arrested and put in jail, and now his partners want to kill him for treason.
oOo
A week later..
Around midnight, Ladybug and Chat Noir meet at the top of the Eiffel Tower, as they do every Monday. The girl is carrying a black box with a green bow.
"I see you've brought something this time, my lady. Pastries, I hope?"
"Not tonight, birthday boy. I've got a gift for you." She holds out the teal-wrapped box to him and he grabs it before carefully pealing off the tape, to preserve the wrapping paper of his very first gift from his girlfriend. He lifts the lid to find a single piece of neon green paper. His confused frown slowly turns into a smile when he reads the note.
One million free kisses for the year
It's followed by a lipstick kiss and a heart. He raises his eyes just in time to see his lady cup his face and press her lips against his in a pawsionate kiss (A/N:sorry, couldn't resist). His first kiss ever.
"Happy birthday Adrien."
A/N: Just to be clear, Gabriel is not Hawk Moth is this fanfic, because, well, he's in jail.